331683816 has 32 divisors (see below), whose sum is σ = 831124800. Its totient is φ = 110305920.

The previous prime is 331683769. The next prime is 331683823. The reversal of 331683816 is 618386133.

331683816 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×331683816² = 220028307592643712, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5205 + ... + 26276.

It is an arithmetic number, because the mean of its divisors is an integer number (25972650).

Almost surely, 2^331683816 is an apocalyptic number.

It is an amenable number.

331683816 is an abundant number, since it is smaller than the sum of its proper divisors (499440984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331683816 is a wasteful number, since it uses less digits than its factorization.

331683816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31929 (or 31925 counting only the distinct ones).

The product of its digits is 62208, while the sum is 39.

The square root of 331683816 is about 18212.1886658359. The cubic root of 331683816 is about 692.2156711348.

The spelling of 331683816 in words is "three hundred thirty-one million, six hundred eighty-three thousand, eight hundred sixteen".